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Proceedings Paper

Use of 20/30 GHz frequencies for broadband satellite communication systems
Author(s): P. Capodieci; F. Martinino; M. Melani; Ovivio Michelangeli; E. Salvatori; Saverio Cacopardi; Gianluca Reali
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Paper Abstract

This paper provides a review of possible applications of the exploitation of the 20/30 GHz frequency bands in satellite communication systems. The availability of new higher frequency bands extends to the satellite networks the concept of 'broadband communications', providing new possibilities of integration with the wideband terrestrial networks. Three main applications are here analyzed: (a) the multipoint videoconference; (b) the LAN-to-LAN interconnections; (c) the HDTV service. The work is based on the utilization of the 20/30 GHz ITALSAT satellite, that was designed and developed by Alenia Spazio in the frame of a national program. ITALSAT is in orbit since January '91, providing two different coverages of the Italian territory. In particular, the ITALSAT satellite is considered here as baseline for the system design of the applications analyzed in the paper. The important problem related to the wave propagation atmospheric effects at these frequency bands is also addressed. The heavy fading experimented at Ka-band can have particular impact on system design load. To this purpose, a fading countermeasure technique is selected and analyzed based on an adaptive Up Path Power Control (UPPC) concept.

Paper Details

Date Published: 4 November 1993
PDF: 17 pages
Proc. SPIE 1976, High-Definition Video, (4 November 1993); doi: 10.1117/12.161466
Show Author Affiliations
P. Capodieci, Alenia Spazio SpA (Italy)
F. Martinino, Alenia Spazio SpA (Italy)
M. Melani, Alenia Spazio SpA (Italy)
Ovivio Michelangeli, Alenia Spazio SpA (Italy)
E. Salvatori, Alenia Spazio SpA (Italy)
Saverio Cacopardi, Univ. di Perugia (Italy)
Gianluca Reali, Univ. di Perugia (Italy)

Published in SPIE Proceedings Vol. 1976:
High-Definition Video
Naohisa Ohta, Editor(s)

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